VOGONS


First post, by Predator99

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I will take the Sigrok-EGA project...
6€ MCE2VGA replacement - CGA/EGA/HGC capture with logic analyzer
...as opportunity to test, sort and show my collection of EGA cards and provide the BIOS images (around 20 in total I think)

Everybody is welcome to contribute, please use the proposed format.

But please no discussion here to keep readability...post questions/comments here:
BIOS image collection - requests, discussion etc

+++Discussions here please to keep readability
BIOS image collection - requests, discussion etc
+++Discussions here please to keep readability

Reply 2 of 26, by Predator99

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#1
Manufacturer/Identifier: Thomson Renaissance
Chipset:
BIOS-String: Version 1.00 IBM COMPATIBLE.*EGA BIOS V1.6 COPYRIGHT Award Software Inc.
Status: Card is working

EGA-Thomson Renaissance - F.jpg
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EGA-Thomson Renaissance - B.jpg
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Last edited by Predator99 on 2020-08-27, 13:06. Edited 1 time in total.

Reply 3 of 26, by Predator99

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#2
Manufacturer/Identifier: Pardise Autoswitch EGA2
Chipset:
BIOS-String: IBM COMPATIBILITY 0COPYRIGHT PARADISE SYSTEMS, INC. 1986 PEGA BIOS
Status: Card is working

EGA-Pardise Autoswitch EGA2 - F.jpg
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Last edited by Predator99 on 2020-08-27, 13:07. Edited 1 time in total.

Reply 4 of 26, by Predator99

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#3
Manufacturer/Identifier: D2A62LVEGA Video 7 VEGA
Chipset:
BIOS-String: Note: Some code expects "IBM" here!w<VEGA BIOS Code, Version 1.08 èN Ë(C) Copyright 1985,1986 Video-7 Inc., All Rights Reserved. Updated: 05/21/87
Status: Card is working

EGA-D2A62LVEGA-Video 7 VEGA-F.jpg
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Last edited by Predator99 on 2020-08-27, 13:08. Edited 1 time in total.

Reply 5 of 26, by Predator99

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#4
Manufacturer/Identifier: AST 3G Plus
Chipset:
BIOS-String: IBM is mentioned for compatibility only. (C)Copyright 1985 Interlink Business Network Corp. V1.27 (C)Copyright 1987 AST Research, Inc. V2.023 All Rights Reserved
Status: Card is working

EGA-AST-3G Plus - F.jpg
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Reply 6 of 26, by Predator99

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#5
Manufacturer/Identifier: TSENG EVA/480 ET-2000
Chipset:
BIOS-String: [This is not a product of IBM (IBM is a trademark of International Business Machines Corp.)ëY * Copyright(c)1986 Tseng Laboratories, Inc. 07/28/86 V1.xx*
Status: Card is working

TSENG EVA/480 ET-2000 EGA / NEC GB-1 COLOR GRAPHICS BOARD

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Reply 7 of 26, by Predator99

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#6
Manufacturer/Identifier: AST 3G Plus
Chipset:
BIOS-String: IBM is mentioned for compatibility only. (C)Copyright 1985 Interlink Business Network Corp. V1.27 (C)Copyright 1985 AST Research, Inc. V2.022 All Rights Reserved
Status: Card is working, also with IC missing compared to #4

EGA-AST-3G Plus2 - F.jpg
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Reply 8 of 26, by Predator99

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#7
Manufacturer/Identifier: IBM EGA
Chipset:
BIOS-String: 48/31/94891 MBI THGIRYPOC)C( 65377260042(
Status: Not working, starts to smell. BIOS read with TL866

EGA-IBM EGA - F.jpg
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Reply 9 of 26, by Predator99

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#8
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: PC boots but no display - wrong jumper setting?

ATI 16899-0 EGA Wonder VIP - F.jpg
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Reply 10 of 26, by Predator99

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#9
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: Card is working

EGA - CT-8090 -F.jpg
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Reply 11 of 26, by Predator99

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#10
Manufacturer/Identifier: Genoa SUPEREGA FCC ID FB85EW4880
Chipset:
BIOS-String:
Status: Card is working

https://arvutimuuseum.ee/th99/v/E-H/54061.htm

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Last edited by Predator99 on 2020-10-26, 08:26. Edited 3 times in total.

Reply 12 of 26, by Predator99

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#11
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: Card is working

EGA-CT P82C431 - F.jpg
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Reply 13 of 26, by Predator99

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#12
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: Card is working

EGA-HP 45983-60001 - F.jpg
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Reply 14 of 26, by Predator99

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#13
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: Card is working

EGA-Spegasync - F.jpg
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Reply 15 of 26, by Predator99

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#14
Manufacturer/Identifier:
Chipset:
BIOS-String:
Status: Card is working

EGA-CT P82C435 - F.jpg
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Reply 16 of 26, by kdr

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#15
Manufacturer/Identifier: SPEGASYNC-00
Chipset: Chips & Technologies CS8240 (82C43x)
BIOS-String:

IBM EGA COMPATIBLE.*UNISYS ENHANCED GRAPHICS CONTROLLER  VERSION 1.30  
(C)Copyright Sigma Designs, Inc 1985,1986

Status: Working at 4.77Mhz

IIMG_20201009_145052.jpg
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Front of SPEGASYNC-00 card
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IIMG_20201009_145128_1.jpg
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Rear of SPEGASYNC-00 card
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Jumpers/Switches are the same as on a genuine IBM EGA card:
SW1-4: configuration switches
P1: configure pin 2 of video connector to be GND (for CGA monitors) or RS (for EGA monitors)
P2: light pen connector
P3: configure EGA for I/O port 3x0 or 2x0 [but BIOS doesn't have support for cards at 2x0]

Notes:
Card does not work in a Turbo XT system at 10Mhz (but it's fine at 4.77Mhz). Apparently neither the ROM nor the RAM chips (120ns) are fast enough.
Haven't bothered to test the serial port.
ROM is 16KB, labelled "UN 1.30".
The L1A2334 chip is a custom Sigma Designs gate array that implements the 'glue logic' and the hardware portion of the Sigma CGA emulation.

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  • Filename
    SPEGASYNC.ZIP
    File size
    9.4 KiB
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    115 downloads
    File comment
    ROM dump of SPEGASYNC-00 card (UN 1.30)
    File license
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Reply 17 of 26, by kdr

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#16
Manufacturer/Identifier: ERGO480
Chipset: Chips & Technologies CS8240 (82C43x) + Sigma Designs L1A2334
BIOS-String:

IBM EGA COMPATIBLE.*UNISYS EVC V 1.60  
(C)Copyright Sigma Designs, Inc 1985,1986

Status: Bad RAM chip (U6) on M3D0-M3D3 (low 4 bits of plane #3), freezes system during POST
Status: appears to be working, requires multisync TTL display @ 31.25khz (or possibly even higher)

IIMG_20201009_145150_1.jpg
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Front of ERGO480 card
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IIMG_20201009_145239_1.jpg
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Detail shot of ROM socket and ROM chip
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IIMG_20201009_145207.jpg
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Rear of ERGO480 card
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Jumpers/Switches are similar as on a genuine IBM EGA card:
SW1-4: configuration switches (somewhat similar to the IBM EGA switches I think?)
SW5: enable CGA hardware emulation? (When ON, shorts the light pen switch input to GND.)
P1: configure pin 2 of video connector to be GND (for CGA monitors) or RS (for EGA monitors)
P2: light pen connector
P3: configure EGA for I/O port 3x0 or 2x0 [but BIOS doesn't have support for cards at 2x0]

Oscillators:
28.500Mhz (CLKSEL=00)
32.000Mhz (CLKSEL=01)
'SPARE OSC' (CLKSEL=10)
EGA feature connector (CLKSEL=11)
Video BIOS uses CRTC register F9 to program an extra divide-by-2 stage so that the card is able to generate standard 15.7khz / 21.8khz modes from the high-speed oscillators.

Notes:
Card fails to POST, error beep is long-short-short-short, and then the system freezes/fails to boot.
ROM is 32KB, no label on the chip. Card only decodes C000-C3FF (16KB).
Hidden underneath the ROM socket (!!) is a PAL16L8 device that responds to I/O writes at port 03CBh and switches between the upper and lower 16KB banks.
The L1A2334 chip is a custom Sigma Designs gate array that implements the 'glue logic' and the hardware portion of the Sigma CGA emulation. This chip has some kind of emulation control register at 03DCh.
SW1 is stuck in 'OFF' position so I rigged up a jumper wire for it.

Attachments

  • Filename
    ERGO480.ZIP
    File size
    15.44 KiB
    Downloads
    116 downloads
    File comment
    ROM dump of ERGO480 card (V1.60)
    File license
    Fair use/fair dealing exception

Reply 18 of 26, by kdr

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#17
Manufacturer/Identifier: NEL ELECTRONICS / "ULTIMATE EGA+++"
Chipset: "UDL" C3 (8737KK)
BIOS-String: NEL INTERNATIONAL 1987 IBM EGA COMPATIBLE SMART BIOS 5.93 11/17/87
Status: working in XT systems at 4.77Mhz and 8Mhz, display corruption at 10Mhz
Oscillators: 16.257Mhz and 27.648Mhz

IIMG_20201017_220149.jpg
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Card had 120ns memory installed. I tried 100ns memory, but the card is still unstable when running the bus at 10Mhz. Writes to display RAM are fine, but reads often fail to return valid data = corruption when scrolling etc. I suspect it's actually the ASIC that can't keep up with the 10Mhz bus.

No datasheet or other documentation appears to exist for the "UDL" series of chips. There are sure to be some "Super EGA" modes available (given the 27.648Mhz oscillator on the board) but no idea how to access them or what kind of display they might require.

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  • Filename
    ULTIMATE_EGA.ZIP
    File size
    8.92 KiB
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    121 downloads
    File comment
    Dump of ULTIMATE EGA+++ video BIOS
    File license
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Reply 19 of 26, by mogwaay

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Hi there,

Sorry to bomb this thread, but in the interests of digital preservation, I thought I'd add an EGA card I was working on last night to the list incase anyone is looking for ROMs.

Manufacturer/Identifier: Juko ST (NEL Electronics)
Chipset: UDL C3
BIOS-String: NEL INTERNATIONAL 1989 IBM EGA COMPATIBLE BIOS 6.04 09-09-90
Status: Unknown - haven't got it tested yet...
Jumpers/Switches: again, not tested, but I think it's similar to the NEL/Juko Ultimate EGA: https://arvutimuuseum.ee/th99/v/I-L/50064.htm

IMG_20210517_223211.jpg
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Back of card
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Dump of BIOS ROM
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Interesting how the ROM is labeled Juko ST, which appers to be a motherboard BIOS (Juko XT Super Turbo I think) but the contents of the ROM does appear to be a Video Bios extension. Also a later version than on this thread and here EGA Card Restoration Attempt.